Apparatus for treating viscose.



PATENTED OCT. 25, 1904.

L. NAUDIN. APPARATUS POR TREATING VISCOSE.

APPLICATION FILED MAB.. 31,1904.

2 SHEETS-SHEET l.

N0 MODEL.

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No. 773,412. `PATEIQIEIB OCT. 25, 1904.

L. NAUDIN.

APPARATUSTOR TREATING VISGOSE.

APPLICATION FILED MAR. 31.1904.

N0 MODEL. 2 SHEETS-SHEET 2.

i?ym ff/ff d UNITED STATES Patented October1 25, 1904.

PATENT EETCE.

LAURENT NAUDIN, OF PARIS, FRANCE, ASSIGNOR TO LA SOCIETE FRANCAISE DE LA VISCOSE, OF PARIS, FRANCE.

APPARATUS FOR TREATING VISCOSE.

SPECIFICATION forming part of Letters Patent No. 773,412, dated October 25, 1904.

Application filed March 31, 1904. Serial No. 201,022. iNo model.)

To all Inh/0777, it m/ctg/ concern.' Y

Be it known that I, LAURENT NAUDIN, engi neer, a citizen of the French Republic, residing at Paris, France, have invented certain new and useful Improvements in Apparatus for Treating' Viscose, of which the following is a specification.

It is known that a gloss or brilliancy similar to that of silk can be obtained on filaments of viscose by effecting under tension the fixing of the filament by means of a dilute mineral acid-that is to say,that the filament must be subjected simultaneously to a tractive stress or strain and to the action of the acid. Up to the present this tractive stress or strain has been produced by hand. Consequently it has not always been possible to insure. complete uniformity in the treatment and in the resulting edect, so that some parts of a skein of filaments have acquired a better gloss than other parts of the same skein. Now this invention has for its object to provide apparatus which is intended to remedy this drawback.

In the accompanying drawings, Figure 1 is a longitudinal section of the apparatus. Fig. 2 is a transversal section.

A convenient constructional example of the improved apparatus comprises a vessel 1, in which are arranged one above the other two parallel arms or shafts 2 '3, provided with drums or wooden rollers 4 5, which are capable of revolving readily on their shafts and are adapted to carry skeins of viscose filaments. At or in the upper part of the vessel there is provided a spraying or sprinkling pipe 6 for discharging dilute sulfuric acid into the vessel and onto the skeins. The lower shaft 3 is connecteduto the rod of a piston 7, operating in a hydraulic or other cylinder 7. rIhe latter is fitted with inlet and outlet valves, which are arranged to open and close automatically. The cylinder 7 is also 'fitted at each end with an inlet-cock and an outlet-cock. The said piston is preferably actuated by water under pressure; but it is obvious that it might also be actuated by compressed air or even by means of a vacuum.

In using the improved apparatus first the lower inlet-cock 8 and the upper outlet-cock 9 inlet-cock 8 is closed and the lower outlet-cock 10 is opened. The lower shaft moves down and stretches the skein by its own weight.

The reference character 11 denotes a driving-shaft carrying a worm Il, which meshes with the worm-gear Il, fixed upon the camshaft 12, the latter beingI driven through the medium of said worm 11a and worm-gear Il" when the driving-shaft 1l is operated. Fixed upon the shaft 12 are the cams I3 14e. The former is termed the i primary7 and the latter the "seconda-ry. The cams I3 14e are adapted to impart a vertical movement to a pair of shifting rods 13 14a. The cam I3 actuates the rod 13a, and the cam lei actuates the rod 14, The rods I3 ltleach operate through a pair of guidekeepers 14C, and the said rods 13 14 are connected at their upper ends to the cocks 9 and 15. rIhe connection between the rod 13 and the cock 9 is in the form of a link 13, and the connection between the rod 14 and the cock l5 is in the form of a link 14h. Vhen the shaft l1 drives the cam-shaft 12 through the medium of the worin IlI and the worm-gear Il", the primary cam through the medium of the rod I3 and the link I3" closes the outlet-cock 9 and the secondary cam 14; through the medium of the rod 14 and link 141 opens the upper inlet cock 15. The skeins are thereby stretched by hydraulic or 'other pressure during a period of time which is determined by the duration of theoperation of the cams. Then the primary and secondary cams 13 14 have completed their operation, the upper inlet-cock 15 closes and the upper outlet-cock 9 opens. In this position of the cocks the skeins are stretched Vsolely by the weight of the roller 5 on the lower shaft. At this moment a tertiary cam 16, carried by the shaft 12, tilts a lever 17 in such a manner as to cause a pulley 1S, which is mounted loose on the driving-shaft ll, to come into engagement with said shaft 11.

The pulley 18 drives a worm-shaft 19, which causes the upper shaftQ to rotate. At the same time a pulley 20 on the last-mentioned wormshaft 19 and a pulley 21 on another wormshaft, 22, causes the lower shaft 3 to rotate. rI`his combined motion of the upper and lower shafts causes the skein to change its position and by this means insures a uniform action of the sulfuric acid upon the various portions of the filament. Then the tertiary cam 16 has completed its operation, the pulley 18 on the driving-shaft is disengaged from its shaft by the action of a counterweight 23, so that the upper and lower shafts 2 3 cease rotating and the primary and secondary cams 13 14 operate the upper and lower outlet-cocks 9 and 15 in the same manner as hereinbefore described. The skeins are thus ag'ain placed under tension, as set forth. rllhis alternate operation of tension and shifting of the skeins may be repeated as often as desired.

In order to stop the treatment of the skeins, it is sufficient to disengage the driving-shaft 11, to cause the lower shaft to move upwardly by hydraulic or other pressure, to remove the skeins which have been fixed or treated, and to place fresh skeins in their place.

Having thus described and ascertained the nature of my invention and in what manner the same may be performed, l declare that what .l claim is- 1. An apparatusfor fixing skeins of viscose having a vessel, two parallel shafts arranged in this vessel for carrying the skeins, and means for alternatively increasing the distance between and for rotating said shafts, substantially as described.

2. An apparatus for fixing skeins of viscose having a vessel two parallel shafts in this vessel for carrying the skeins, a cylinder, a fluidoperated piston in said cylinder carrying the lower shaft, inlet and outlet cocks for the said cylinder and cams on a cam-shaft for closing or openingl these cocks, and for engaging' or disengaging the shafts with the driving-shaft, substantially as described.

3. An apparatus for treating' skeins of viscose com prising a vessel, a sulf uric-acid-spray pipe arrang'ed therein.a pair of intermittentlyrotatable sliein-carrying shafts mounted in said vessel below the said pipe, means connected with one of said shafts for imparting an intermittent vertical movement thereto, and means connected with said shafts for imparting an intermittent rotary movement thereto.

1. An apparatus for treating' skeins of viscose comprising a vessel, a sulfuric-acid-spray pipe arranged therein, a pair of intermittentlyrotatable skein-carrying shafts mounted in said vessel below said pipe, a Huid-operated means connected with one of said shafts for imparting an intermittent vertical movement thereto, and means connected with said shaft for imparting an intermittent rotary movement thereto.

5. An apparatus for treating skeins of viscose involving a pair of rotatable skein-carrying shafts, a rotatable cam-shaft, primary, secondary and tertiary cams carried thereby, and means engaged and operated by said cams for imparting an intermittent vertical movement to one of said skein-carrying shafts and for intermittently rotating said pair of skeincarrying shafts simultaneously.

6. An apparatus for treating skeins of viscose involving' a pair of parallel skein-carrying shafts, and means for automatically and intermittently increasing the distance between and rotating said shafts.

7. An apparatus for treating skeins of viscose involving a pair of skein-carrying shafts, a fluid-operated means for increasing the distance between said shafts, and means for intermittently rotating said shafts.

8. An apparatus for treating skeins of viscose involving a pair of skein-carrying shafts, a fluid-pressure-operated means for automatically and intermittently increasing the distance between said shafts, and means for automatici lly and intermittently rotating said shafts.

9. An apparatus for treating skeins of viscose involving' a pair of skein-carrying shafts, arotatable cam-shaft, primary, secondary and tertiary cams carried thereby, means engaged and operated by said primary and secondary cams for increasing the distance between said shafts, and means engaged and operated by said tertiary cam for intermittently rotating said pair of shafts simultaneously.

10. An apparatus for treating skeins of viscose involving a pair of skein-carrying shafts, a Huid-operated means connected to one of said shafts and adapted when operated to increase the distance between the said shafts, a rotatable cam-shaft, primary, secondary and tertiary cams carried thereby, inlet and outlet valve mechanisms adapted when operated to cause the operation of said Huid-operated means, means engaged and operated by said primary and secondary cams for operating said mechanisms, and means engaged and operated by said tertiary cam for causing a rotary movement to be imparted to said shafts.

1n testimony whereof l have hereunto set my hand in presence of two subscribing witnesses.

LAURENT NAUDlN.

Nitnessesz HANsoN C. Coxn, PAUL BLUM.

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